Let Us Now Praise Famous Robots

I admitted in yesterday’s post that I’m ambivalent about continuing to use human astronauts. I fully understand things from the astronauts’ perspective and would even take an opportunity to travel to space in the unlikely event that it’s offered to me, but let’s face it: the main argument in favor of using humans is emotional. It’s important to acknowledge and reward inspiration, but there’s an issue that we science- and space-exploration-lovers must accept.

Robots do it better.

I’m not talking about theoretical work or what usually falls into the category of experiment. I’m talking about simple exploration. Robots can endure cold, heat, and long trips between planets, not to mention a refreshing lack of existential dread over the possibility (indeed probability) that they’ll never come back to Earth.* Even a large, heavy robot is lighter than the equipment necessary to sustain a single human. Robots don’t need to eat, drink, or defecate, and suffer changes in of gravity with far more grace than we do. Robotic spacecraft can maintain orbit around a planet for years on end.

Just think about all the great robotic scientific missions operating right now:

This list isn’t exhaustive and doesn’t include great past missions like the Explorer satellite, Voyager probes, the Viking missions, the various Mariner probes, and Galileo—and I’m even being American-centric, which is highly unfair to the ESA, Russian, Japanese, and Indian space probes that have done and continue to do excellent work. (Those of you who know me know I’m not really jingoistic, and of course Cassini is actually a joint US-ESA mission. Science at its best is an international venture, and scientific knowledge is shared by all humanity.)

The arguments in favor of spaceflight by humans are largely emotional; the arguments in favor of robotic space exploration are largely practical. I would love to see sunrise over Jupiter, to set foot on the Moon or Mars, to pilot a craft through the ice plumes of Enceladus… yet we aren’t completely deprived of joy by seeing these images sent back by the best missions. Robotic missions still represent what is best about our ingenuity, and I say praise them.

*Several people I’ve spoken with, including Lisa Pratt and one of my physics colleagues at Randolph-Macon, said they would be willing to take a one-way trip to Mars, which once again I understand fully and might even consider myself under the right conditions.

9 responses to “Let Us Now Praise Famous Robots”

  1. […] absolutely no way to intervene from so great a distance—this is a remarkable feat. I’m unabashedly a fan of robotic exploration, and so even though planets are not my area I follow missions like this with […]

  2. […] physicist, I am always impressed by the ingenuity of the designers and builders of these robotic explorers: I have some idea about the difficulty in constructing these things, enough to know how challenging […]

  3. […] the contrary: this is the golden age of space exploration. Between Cassini, MESSENGER, the Mars rovers (current and future), and many many others besides, […]

  4. […] humans into space. On the other side of the issue, “Space Exploration is Not Over” and “Let Us Now Praise Famous Robots” are posts that focus on the aspect of space exploration that is often ignored: exploration by […]

  5. […] of robotic probes exploring our Solar System: the Cassini mission (my favorite probe currently in operation) has […]

  6. […] Cassini probe (my favorite robotic explorer) has flown through the plumes from the cryovolcanoes and analyzed the chemical composition. Though […]

  7. […] “Let Us Now Praise Famous Robots” and “Don’t Understand Something? Blame It On Quantum […]

  8. […] the same time, there are things only robots can do. No human-occupied spacecraft could stay in orbit around Saturn as long as Cassini has, or endured […]

  9. […] written on several occasions how images from Voyager 2 first made me aware of other worlds—Jupiter, Saturn, Uranus, Neptune, and their moons—as real […]

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